Hannibal Police say a death investigation is underway following an E-M-S call Monday.

Emergency responders were called to the 200 block of Hill for an unconscious male. E-M-S determined the individual was deceased.

Police say an autopsy was performed on the 55 year old Hannibal resident and that preliminary findings do not indicate foul play.

Police say the investigation is ongoing and additional information may be released at a later date.